How often does USCIS update its processing dates?

I see the most recent update in July 16. When will be the next update?

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• 回複：How often does USCIS update its processing dates? -MPOS- ♂ (18 bytes) () 08/08/2007 postreply 11:24:19

• next week! -綠卡仙蹤- ♀ (0 bytes) () 08/08/2007 postreply 11:24:26

• 如果不出，問您要？,,,,,,,,,,,,,,,,回複：next week! -MPOS- ♂ (0 bytes) () 08/08/2007 postreply 11:26:00

• 為啥不出呀？會出滴，放心吧！ -綠卡仙蹤- ♀ (0 bytes) () 08/08/2007 postreply 11:31:39

• xiexie xian,,,,,,,,,,回複：為啥不出呀？會出滴，放心吧！ -MPOS- ♂ (0 bytes) () 08/08/2007 postreply 11:34:58

• 不客氣 -綠卡仙蹤- ♀ (0 bytes) () 08/08/2007 postreply 11:37:18